Warm-air heater and circulator



L. S. VAN TASSEL WARM AIR HEATER AND CIRGULTOR Aug. 3

ts-Sheet 1 Filed Jan. 5, 1926 NM IMN Aug. 3

Filed Jan. 5, 1926 2 Sheets-Sheet '2 attorney awn.

Patented Aug. 3, 1926. r

arts srras LAWRENCE S. VAN TASSEL, OF FINDLAY, OHIO.

WARM-AIR HEATER AND CIRGULATOR.

Application filed January This invention relates to heaters wherein theair is heated by means of gas jets or burners and particularly to aheater so constructed that the air of the room will circulate throughthe heater;

The general object of the invention is the provision of a warm airheater and circulator of such construction that the cold air will betaken from the floor and caused to circulate through the heater to thusproperly warm the air and discharge it through the top of the heater,thus securing a complete circulation of the air.

A further object is to provide a heater so constructed as to secure arelatively large capacity "for the circulation of air.

Still another object is to provide means whereby a view of'thecombustion chamber with the burners may be secured without the necessityoi: stooping down to look into the opening of the combustion chamber.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings, wherein Figurel is a vertical sectional viewon the line l-1 of Figure 3;

Fig. 2 is a vertical sectional line 2-2 of Figure 1; i

3 is a cross section on the line 33 of Figure 2-; 1

Fig. l is a section on line l-& of Figure 2;;and

5 is a section on the line 5-5ot view on the V Figure 3.

Referring to these drawings it will be seen that my heater consists ofan uter shell or casing generally designated 10, which is approximatelysquare or rectangular in cross section and is provided at its cornerswith hollow legs 11. This shell is formed of sheet metal, lined withasbestos l2, and with an inner layer 01: thin sheet metal, as forinstance, tin, this layer being designated 13. At its upper end theouter shell with the lining :layers is inwardly conve ged as at l'fl andthen extends upward and carries the screen or register 15, which may bemade of any suitable open work material. -The lower end of the shell isopen and the shell is formed of four panels of sheet 'metal riveted orotherwise engaged with the legs 11. These legs 11 extend downward belowthe shell as shown 5, 1926.- Serial No. 79,410.

in Figure 2, and are hollow as shown in Figure 5. Riveted, brazed orotherwise attached to the legs is a frame or band 16 and inward of thisband is a rectangular frame 17. The sheet metal of the panels formingthe outer casing 10 extends down between this outer frame 16-and theinner :t'rame 17. This inner frame 17 has transversely extendingelements 18. l lxtending around the upper portion of the casing or shell10 and rivetedbrazed or otherwise attached to the upper ends of the legs11 is a rectangular frame or band 19.

Disposed within the shell and resting upon the transversely extendingmembers .18 is an octagonal casing 20 constituting the outer wall ofa'combustion chamber. This octagonal wall 20 extends upward nearly'thefull height of the shell and this octagonal wall is providedwithfouropenings 21, preferably disposed so that theaXes of saidopenings are radial and extend toward the four legs as shown in Figure4:. Mounted within the octagonal shell 20 and forming the inner wall ofthe combustion chamber is an air pipe 22 terminating at its upper end ina relatively large air chamber 23. The air pipe 22at its lower endisconnected to the wall 20 by an angular web 24 while the upper end ofthe wall of the air chamber is connected to the octagonal wall 20 by theweb 25. Air lines 26 extend inward and upward from theopenings 21 andcommunicate with the inteior oi"- the air chamber 23 as shown mostclearly in Figures 2 and 5a Ba llie plates 27 are attached to the wall20 above these air fines 26, as shown in Figures 3 and 5, t id act todeflect the air rising upwards vi -n the circulator into the air titles26 and so into'the air chamber Disposed across the combustion chamber 28is a web '29 constituting a balile, this web at the front of the heater:and cir- ,culator being cut away to form a semicircular opening as at30, see Figures 1 and 3. he upper portion of the combustion chat her 28has a 'rcarwardly extending fine 31 which extends out through the outercasing or shell, as shown in Figure l. The rear of the casingat thelower end of the combustion chamber is formed witn an inwardly extendingpassage 82. The baffle plate 29 directs the heat generated inthecombustion chamber around the circulator and then permits this heat topass upward through the semi-circular opening 30 into the upper portionof the combustion chamher and then out through the flue 31. The en irecombustion chamber comprising the shell or wall 20 and the wall 22, thewebs E iand 25 and he connected air tubes 26, the flue 31 and the wallof the passage 32 are preferably welded into a single piece so hat thereis no possibility of the escapeof gas fumes. The air tubes 26, it willbe noted in Figure 4, passing through the outer and the inner airchambers are placed opposite'the corners of this cabinet heater andcirculator and are thus fed from the points of maximum air capacity inthe inner chamber.

Disposed within the lower portion of the combustion chamber as shown inFigure 2, are burners of any suitable character. 1 have illustratedthese burners as beings burners, designated 38. These burners are soformed as to discharge a jet of mingled gas and air upward and inwardagainst the air heating wall 22 of the air passage. These burners areconnected by a pipe and T to asupply pipe 34 which extends out throughthe opening 32. I do not wish to be limited to the number of burnerswhich I may use, nor to the character of these burners and the showingmade in the drawings is purely illustrative of the fact that I may use aplurality of gas burners dis posed in the lower portion of thecombustion chamber.

Preferably I provide a mirror 35 pivotally mounted for adjustment arounda pivot 36 and being held in its adjusted position by a thumb screw,wing nut or the like, and the mirror being disposed at such an anglethat by looking directly down into the mirror, without stooping, it ispossible to observe the condition of at least one of the burners andthus see whether the flame is turned too high or too low or whether itneeds adjustment.

The heater as described has an appearance very much like that of aphonograph cabinet and may be made more or less ornamental in itscharacter. The outer surface of the sheet metal constituting the outershell may be enameled or otherwise finished to simulate fine woodwork ifdesired. The fine 31 wi l, of course, be connected to a stove pipewhereby the products of combustion may be carriedoii. It will be seenthat this construction provides a very neat, simple and effective heaterwhich takes relatively cold air from a point adjacent the floor andcarries it upward through the air pipe and the air chamber 23 andthrough the space between the outer and inner shells, heats the air andthen discharges it upward through the register 15. The air is directedagainst the outside and inside faces of the walls of the combustionchamber so as to receive a maximum of heating effect, and a portion ofthe air passing upward be twee the outside shell and the combustionlamber is deflected inward by the battles where it comes in contact withthe direc LO O heat from the burners and is then carried upward throughthe air chamber 23. e legs being hollow also provide means whereby airmay be conveyed upward to be heated and form part of the circulation.system and at the same time these hollow legs have a maximum of strengthwith a minimum of weight. The legs extend downward and outward, as shownparticularly in Figure 5, so as to secure a firm base for the heater andcirculator. V l

.Vhile I have illustrated certain details of construction andarrangement of parts which 1 have found particularly effective inpractice, I do not wish to be limited to all of these details as it isobvious that change might be made therein without departing from thespirit of the invention as defined in the appended claims.

I claim 1. A heater and air circulator of the character describedcomprising an outer thin metallic shell having a register at its upperend and open at its lower end, legs sup.

porting the said shell above the. floor, a centrally disposed airchamber open at its upper and lower ends and terminating short of saidregister, a wall exterior to. the .air chamber and constituting theouter wall of a combustion chamber disposed outward of the air chamber,said combustion chamber having a smoke flue extending outward throughthe outer shell, a passage at its lower end extending through the outershell, fines extending through the Outer wall of the combustion chamberand opening into the interior of the air chamber, battles disposed abovethe entrance ends of said fines, and a baflle disposed within thecombustion chamber above said fines and separating the combustionchamber into two sections and said battle at a point diametricallyoppo-' site to the smoke flue being provided with an opening. r

2. An air circulator and heater comprising an outer shell, rectangularin cross section and formed of thin metal panels, the panels beingjoined at their edges by upwardly extending legs, a central aircirculator dis posed within the-hollow shell and open at its upper andlower ends, a wall exterior to the air chamber and spaced from saidshell and defining a combustion chamber immediately surrounding the airchamber, the upper portion of the combustion chamber being separatedfrom the lower. portion by a battle wall having an opening at the frontof the heater, said combustionchamber at its rear having an outwardlyextending smoke flue disposed above the baffle and extending through theouter shell and at its lower end having an entrance passage extendingthrough the outer shell, the space between the outer shell of thecombustion chamber being connected to the interior of the air chamber bymeans of upwardly inclined air fines and said flues being disposed withtheir axes directed to the corners of the outer shell.

In testimony whereof I hereunto afiix my signature.

LAWRENCE S. VAN TASSEL.

